https://bitbucket.org/purelang/pure-lang/issue/29/pure-stldict-08-fails-to-build-on-os-x-108
--- Makefile.orig	Fri Sep 26 00:34:35 2014 +0200
+++ Makefile	Fri Sep 26 07:20:14 2014 +0200
@@ -14,10 +14,10 @@
 libdir      = $(shell pkg-config pure --variable libdir)
 installdir  = $(addprefix $(DESTDIR), $(libdir)/pure)
 
-MOD_CXXFLAGS = $(PIC) $(shell pkg-config pure --cflags) $(CFLAGS) $(CPPFLAGS)
+MOD_CXXFLAGS = $(PIC) $(shell pkg-config pure --cflags) $(CXXFLAGS) $(CPPFLAGS)
 MOD_LDFLAGS = $(shell pkg-config pure --libs) $(LDFLAGS)
 
-CFLAGS = -g -O2 -Wall -Wextra
+CXXFLAGS = -g -O2 -Wall -Wextra
 
 ifeq "$(DLL)" ".dylib"
 DLL_FLAGS = -install_name "$(libdir)/pure/$@"
--- pure-stlmap/Makefile.orig	Fri Sep 26 00:34:35 2014 +0200
+++ pure-stlmap/Makefile	Fri Sep 26 07:20:14 2014 +0200
@@ -11,10 +11,10 @@
 installdir  = $(addprefix $(DESTDIR), $(libdir)/pure)
 
 MOD_CXXFLAGS = $(PIC) $(shell pkg-config pure --cflags) -I.. \
-	       $(CFLAGS) $(CPPFLAGS)
+	       $(CXXFLAGS) $(CPPFLAGS)
 MOD_LDFLAGS = $(shell pkg-config pure --libs) $(LDFLAGS)
 
-CFLAGS = -g -O2 -Wall -Wextra
+CXXFLAGS = -g -O2 -Wall -Wextra
 ifneq "$(DLL)" ".so"
 # additional libraries to be linked (Mac/Windows only)
 EXTRA_LIBS = ../stlbase$(DLL)
--- pure-stlvec/Makefile.orig	Fri Sep 26 00:34:35 2014 +0200
+++ pure-stlvec/Makefile	Fri Sep 26 07:20:14 2014 +0200
@@ -12,10 +12,10 @@
 
 
 MOD_CXXFLAGS = $(PIC) $(shell pkg-config pure --cflags) -I.. \
-	       $(CFLAGS) $(CPPFLAGS)
+	       $(CXXFLAGS) $(CPPFLAGS)
 MOD_LDFLAGS = $(shell pkg-config pure --libs) $(LDFLAGS)
 
-CFLAGS = -g -O2 -Wall -Wextra
+CXXFLAGS = -g -O2 -Wall -Wextra
 ifneq "$(DLL)" ".so"
 # additional libraries to be linked (Mac/Windows only)
 EXTRA_LIBS = ../stlbase$(DLL)